# Optimism

> Optimism is a public blockchain network. Confidentiality on Optimism: Vendor-gated privacy.

Part of the Soda Labs Privacy Hub, a neutral directory of the on-chain privacy
landscape: https://www.sodalabs.xyz/privacy-hub

## Key facts

- Entry type: Privacy on this network
- Category: Vendor-gated privacy
- Tags: third-party layers, TEE, ZK
- Canonical page: https://www.sodalabs.xyz/privacy-hub/chain-optimism

## Overview

Privacy on the OP Stack arrived in April 2026 through Sunnyside Labs' Privacy Boost, a hybrid of ZK proofs and trusted execution offering confidential transfers and sanctions screening. It runs on OP Mainnet for that vendor's customers rather than as a protocol default, and nothing privacy related sits in the OP Stack or Superchain standards. So the guarantee rests on one vendor's hardware assumptions on top of a transparent base layer.

## Sources

- [Privacy on the OP Stack](https://www.optimism.io/blog/privacy-comes-to-the-op-stack)

## Related entries

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